Four-time Pro Bowl nose tackle Jay Ratliff is expected to return to the field when the Cowboys travel to Baltimore to face the Ravens on Sunday.
Ratliff has been out of action since the third preseason game when he suffered a high ankle sprain.
Josh Brent and Sean Lissemore have filled Ratliff's spot during the first four games of the season.
The 31-year-old nose tackle returns at a good time. Dallas will have to defend Ravens' running game that averages over 117 yards per game. The Cowboys rank 15th in run defense this season without Ratliff on the line.